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When That Belly Discomfort Won’t Go Away
Functional Abdominal Pain is one of the top reasons for visits to school nurses

©iStockPhotoDoes your child complain of pain in the belly that won’t go away but doesn’t come with fever, vomiting, diarrhea or constipation? Then he or she may have FAP, functional abdominal pain. FAP is a common complaint in children ages 4-14. In fact, it represents one of the top reasons for visits to the school nurses and to pediatricians during the school year.

Symptoms of FAP
The most common symptom is pain in the belly, usually around the belly button, but the pain can occur at any place in the belly. Children describe this pain very vividly, and most commonly call it a shooting or stabbing pain. It may even be severe enough to cause the child to leave school, and be doubled over in pain. However, if this occurs with other symptoms, such as a fever, vomiting, diarrhea, burning during urination, etc., there may be a different cause.

FAP tends to be worse during stressful situations, and usually peaks during the start of a new school year or during other stressful situations such as a recent move, a new school, loss of a loved one, divorce, etc., says Dr. Rina Sanghavi, a gastroenterology specialist at Children’s Medical Center and assistant professor of Pediatric Gastroenterology and Nutrition at UT Southwestern.

Educating the family is an important part of treatment of the child with FAP. The pain the child feels is real, like a severe headache, but does not mean the child has a disease.

Why does FAP occur?
It is not known exactly why some children get FAP, but the theory is that there is a genetic component and that the nerves of the child’s gut are sensitive as well.

Just like we have nerves in the brain (the ‘big brain’), our intestines have a lot of nerve connections as well – giving it the nickname ‘the little brain.’ The big and little brains are in constant communication, Dr. Sanghavi says. For example, before going on stage to give a public speech, we may experience butterflies in our stomach because the big brain is telling the little brain that there is a stressful situation, and the gut responds by sending out signals that make the intestine move and react more vigorously. Usually, in someone who is genetically pre disposed to having FAP, a stomach virus, recent illness such as a common cold, etc., tends to make the nerves of the intestines go into ‘overdrive’ so that they are constantly sensing a ‘stress signal’ even though there is none, says Dr. Sanghavi.

What are the treatment options for FAP?
See your child’s pediatrician, who can diagnose FAP. He or she may make a referral to a pediatric gastrointestinal specialist to help diagnose this condition. There is no definitive diagnostic test to confirm the condition, Dr. Sanghavi says, so physicians must conduct a thorough history of the child, with special attention to recent stressors or triggers, such as school, exams or important competitive sporting events, followed by a careful physical exam.

Treatment consists of giving medication to calm down the nerves of the gut, as well as teaching relaxation techniques, which can be learned with the help of a counselor or a psychologist. Most children with FAP will recover in a few weeks to a few months, says Dr. Sanghavi.

It is important to continue to encourage the child to keep going to school, she says. If he or she experiences a bad pain attack at school, the child can be seen by the school nurse, who can apply a hot pack to the belly and let the child rest for a bit before resuming classes. Missing classes makes the situation more stressful and will usually aggravate the pain. Avoid pain relieving medication unless recommended by the child’s doctor.

Specialized care for your child
Children’s has an FAP clinic headed by Dr. Sanghavi and Dr. Alan Farrow-Gillespie that includes a pain management team, a pediatric gastroenterologist and a neuropsychologist, and occupational and physical therapists. The main goal of treatment is a return to normal function rather than the complete disappearance of pain. For information, call 214-456-8131.

Resources
Children's Medical Center Health Library

Last reviewed: February 2009





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